HP 5900 Guide d'installation télécharger pdf (Page 21)

Figure 14 Grounding through the PE wire of the AC power cord

(1) Three-wire AC power cable (2) Chassis rear panel

NOTE:

To guarantee the grounding effect, use the grounding cable provided with the switch to connect to the

grounding strip in the equipment room as long as possible.

Installing/removing a fan tray

CAUTION:

To ensure good ventilation for the switch:

• Install two fan trays of the same model on the switch.

• Do not power on the switch when no or only one fan tray is installed.

• If one fan tray fails, perform the following tasks:

{ Finish replacing the fan tray within 24 hours and do not remove the failed fan tray before replacement when

the ambient temperature is below 27°C (80.6°F).

{ Replace the fan tray immediately when the ambient temperature is above 27°C (80.6°F).

• If both fan trays fail, finish replacing the fan trays within 2 minutes.

Installing a fan tray

CAUTION:

To prevent damage to the fan tray or the connectors on the backplane, insert the fan tray gently. If you

encounter a hard resistance while inserting the fan tray, pull out the fan tray and insert it again.

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HP 5900 Guide d'installation Page 21